Quite a job that, Jon.
I was very nearly hit by a smaller rock as I bent down to pick up my chalk bag. It hit my boot rag, which was right next to it. That was beneath/near the start of The Toilet.
A whole section of the top break - similar area IIRC - fell away, while traversing off some time ago.
I'd suggest that the whole right wing - from say Sardine RW - ought to be looked at.
Happy to help if anyone else wants to join in.